Geometry

Polygons A

100

How many diagonals does a triangle have?

0

200

How many triangles can be formed in a pentagon?

3

300

What is the sum of the interior angles of a quadrilateral?

360^o

400

How many diagonals does a hexagon have?

3

500

This is an angle formed by two adjacent sides inside a polygon.

Interior Angle

Polygons B

100

What is the least number of sides possible in a polygon?

Three

200

What is the sum of the exterior angles of a polygon?

360^o

300

What is the measure of each interior angle of a regular hexagon?

120^o

400

What is the measure of the exterior angle of a regular polygon given that each interior angle measures 135^o?

45^o

500

What is a polygon with 12 sides called?

Dodecagon

Angles

100

What do we call angles that measure less than 90 degrees?

Acute

200

What do we call angles that measure greater than 90 degrees?

Obtuse

300

What is the term for angles that measure exactly 90 degrees?

Right angles

400

What do we call angles that sum to 90 degrees?

Complementary

500

What do we call angles that sum to 180 degrees?

Supplementary

Polygons C

100

What do we call polygons with self-intersecting sides?

Complex Polygon

200

What do we call polygons with all congruent sides and congruent angles?

Regular polygons

300

What is the literal meaning of the word ”polygon”?

Many angles

400

What do we call the point where two sides meet?

Vertex

500

What do we call polygons with all interior angles less than 180^o?

Convex